If you’d like, I can:

Finding a verified, dual-audio (Korean/English) version of the 2010 thriller " I Saw the Devil

When looking for downloads or streams, be aware of which "cut" you are getting, as the film was heavily edited due to its extreme violence: International Cut

stars as Kim Soo-hyun, a National Intelligence Service agent whose pregnant fiancée is brutally murdered by a sadistic serial killer, Kyung-chul (played with terrifying realism by Choi Min-sik —the star of Oldboy ).